A pervert computer expert filmed himself performing sex acts while he ogled young girls in the park.

Peter Brailsford, 45, who owns an IT firm, later claimed the children would not be shocked – because they would have seen similar things on the internet.

Brailsford, from Altrincham, first developed a taste for teenage porn online, but then started watching real school children for an extra ‘buzz’, a court heard.

He started filming his sick acts after visiting ‘exhibitionist’ websites which showed videos of people doing similar things.

Brailsford has been banned from going within 100 yards of any school and will be sentenced for his crimes in March.

He was often drunk or high on cannabis as he sat in his blue Audi and watched the youngsters, Manchester’s Minshull Street Crown Court heard.

On some occasions, he targeted older teenagers and women. When one horrified victim saw him in his car with his trousers undone, he asked: “Do you want to watch?”

He was caught when one woman wrote down the number plate of his car after he exposed himself to her.

When police arrived at his door, he told them he had watched girls about 25 times in three years, both in Trafford and in Lymm, Cheshire. Officers found five videos he had made of himself on his mobile phone.

The films had not been posted on the internet, the court heard.

Brailsford, of Stanley Drive, Timperley, pleaded guilty to five charges of indecent exposure and a further count of outraging public decency.

Maria Brannan, prosecuting, told the court: “He told police he believed that the children wouldn’t be offended or shocked by his actions as they were exposed to that sort of thing via the internet.”

She added: “When he first started to commit the offences he didn’t believe he was seen by the victims as he did not open the car window. As time went on, he became more buoyed and as well as opening the car window and knowing he could be seen, he also spoke to his victims.

”He committed his crimes in several places around Trafford, including Stamford Park, Altrincham, and Northenden Road and Homelands Road in Sale. The court heard Brailsford was ‘ashamed’ of his actions and was ‘close to being a broken man’.

Judge Jonathan Foster QC adjourned the case to allow police more time to examine Brailsford’s computers, but warned him that a jail sentence was an option. He will be sentenced on March 22.